Asteroid Near-Earth

2023 CE3

(2023 CE3)

2023 CE3 is an asteroid in the Aten orbit class. Its orbit takes it from 0.76 AU to 1.24 AU from the Sun; one orbit takes 362.8 days. Orbit from the JPL solution of 14 February 2023.

Where is it now

Distance from Sun: 0.758 AU
True anomaly: 8.84°
Distance from Earth: 0.507 AU
As of: 2 November 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 CE3 is 0.507 AU from Earth today (4.2 light-minutes).

In the sky

Right ascension: 15h 29m 34s
Declination: -62° 47′ 13″
Constellation: Triangulum Australe
Distance from Earth: 0.51 AU
Elongation from the Sun: 48.52° — near the Sun — look low at dusk or dawn

Favours the southern hemisphere; low or below the horizon from far north.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

Paste a location

How do I find my coordinates?

Google Maps on a computer

Right-click the spot where you'll be observing.
The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
Paste them above.

Google Maps on a phone

Press and hold the spot to drop a pin.
The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis: 0.996 AU
Eccentricity: 0.2408
Inclination: 28.49°
Orbital period: 362.8 days
Perihelion: 0.756 AU
Aphelion: 1.235 AU
Longitude of ascending node: 139.49°
Argument of periapsis: 239.54°
Epoch · J2000: 2459988.5
Orbit class · ATE: Aten
Earth MOID · 28.4 LD: 0.073 AU
Tisserand (Jupiter): 5.973

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used: 17
Data arc: 24 hours
First observed: 13 February 2023
Last observed: 14 February 2023
Residual RMS: 0.38 ″
Solution · Otto Matic: 14 February 2023

Visual & observation

Absolute magnitude (H): 25.2

Discovery & classification

Aten Near-Earth Object

Sources

visual properties: JPL SBDB (lookup)
orbital elements: JPL SBDB